Antiskidding device.



El. B. STIMPSON.

ANTISKIDDING DEVICE.

APPLIGATION FILED DEG. 27, 190s.

935,330. Patented sept. 28,1909.

@www/wm l saires arena OFFICE.

1, NEW YORK, N. Y., ASSIGNOR TO EDW'N B. STIMESON COM- A CQRPQRATNQF NEW YORK.

ANTSKIDDING DEVICE.

in Kings, of New York,` haveV invent-eti cert-ain new Vand iiseful Improve-- intisiridding Devices, of which the filon/indie a speciication.- Y lThis invention rev to antieskidding, sind-lille, metal devices, of the class commonly employed in or on tires for auto-ve hicles; and theobject is to provide an elongated trongh-liie Wearing device of hard metal (as hardened steel) secured by rivets or .st-nds, which may have heads ofl softer steel..

in the accompanying drawings', l Which illustrate embodiments of the invention;- iiigure i is perspective view of a part of the device in one forni, and. Fig. 2 isan end view of the sane. Fig.. fri is a cross-section .Si the device one ci the studs. x Fig. l is a section 'the inateiiai with aside eleva- .il l.

tion ofthe device in the same. Figs.

4 f l l nd o tti of the device .ijf difteient terms of the foldl ,ed Wearing plate.

nis shown the anti-skidibodies the invention "edi trough-like, hard s or studs securing it in the iiaiinl shown in Figs. H -..Ten/ed i -eA has its lateral portiens a turned up aong straight parallel ,.a' and folded .in until their margins ryuv inset, the studs B have conical @sails which lit conical recesses 'in said s and pass through holes c in the llfottein ci the troegh-lilte plate. Fig. 4

Speceation of Letters Patent.

Patented sept. es, ieee.

shows the studs extending through the material C and their Shanks. riveted down on a washer-plate d.

.The `forni shown in Fig. 5 represents the folded-in margins Z) of thel plate set Wide enough apart to receive the 'head of the studs 'B between them; and Fig. 6 shows the same construction' but with the margins pressed down'substantially to the bottom of the plate. 4

This device affords an extended biting surface or edge to engage the surface 'of aroadway and increase the traction While increasing at the same time the anti-slipping and anti-shielding 'ei'ect Such a construction, when the Wearing plate is of hard steel, also increases the durability greatly.

Having thus deribed my invention, I claim* l f l; An.v anti-skidding device having a trough-like Wearing plate with bent-up and intnrned margins, and having a rivet for securing' said plate in place extending through a hole inthe bottom of the plate between said inturned margins.

2. An anti-shielding. device having' a @Waugh-like Wearing plate With bent-np and' intnrned margins, and a securing rivet with conical head engaging recesses in said margine, the plate having a hole in its bottom through which projects the shank of the rivet.

In Witness whereof I have hereunto signed my name Athis QLith .day of Dec. 1906, in the presence of two ysubscribing Witnesses.

. EDVVN BALL STIMPSON.

H; G. Hose, 'i/VIILiAM J. FIRTH. 

